Please can someone tell me the simplest way to import a rhino file (.3dm) into ArcGIS

[ChristopherDrew]

I have a set of rhino files that I want to open in ArcGIS 10.3.1 desktop. How do I

[DanPatterson_Retired]

FME comes to mind as a first check or can you export to dxf? most movement references on the web seem to be exporting to dxf, then bringing into a gis

[BruceHarold]

Rhino support is still in Safe's knowledge/ideas bucket, not implemented yet, you could vote it up.

[DanPatterson_Retired]

So that leaves having the ability to export ... I saw some vague reference to python module which I will check 

Edit

It seems to be for using python within rhino3d